aaru-dps/Aaru.Checksums.Native
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Refactor and reformat.

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This commit is contained in:
Natalia Portillo
2023-09-23 18:55:52 +01:00
parent 33f021fd54
commit 1905cb0d43
41 changed files with 1557 additions and 1462 deletions
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30
crc32.c
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@@ -31,9 +31,9 @@
*
* @return Pointer to a structure containing the checksum state.
*/
AARU_EXPORT crc32_ctx* AARU_CALL crc32_init(void)
AARU_EXPORT crc32_ctx *AARU_CALL crc32_init(void)
{
crc32_ctx* ctx = (crc32_ctx*)malloc(sizeof(crc32_ctx));
crc32_ctx *ctx = (crc32_ctx *)malloc(sizeof(crc32_ctx));
if(!ctx) return NULL;
@@ -56,11 +56,11 @@ AARU_EXPORT crc32_ctx* AARU_CALL crc32_init(void)
*
* @returns 0 on success, -1 on error.
*/
AARU_EXPORT int AARU_CALL crc32_update(crc32_ctx* ctx, const uint8_t* data, uint32_t len)
AARU_EXPORT int AARU_CALL crc32_update(crc32_ctx *ctx, const uint8_t *data, uint32_t len)
{
if(!ctx || !data) return -1;
#if defined(__x86_64__) || defined(__amd64) || defined(_M_AMD64) || defined(_M_X64) || defined(__I386__) || \
#if defined(__x86_64__) || defined(__amd64) || defined(_M_AMD64) || defined(_M_X64) || defined(__I386__) || \
defined(__i386__) || defined(__THW_INTEL) || defined(_M_IX86)
if(have_clmul())
{
@@ -101,17 +101,17 @@ AARU_EXPORT int AARU_CALL crc32_update(crc32_ctx* ctx, const uint8_t* data, uint
*
* @note This function assumes little-endian byte order.
*/
AARU_EXPORT void AARU_CALL crc32_slicing(uint32_t* previous_crc, const uint8_t* data, long len)
AARU_EXPORT void AARU_CALL crc32_slicing(uint32_t *previous_crc, const uint8_t *data, long len)
{
// Unroll according to Intel slicing by uint8_t
// http://www.intel.com/technology/comms/perfnet/download/CRC_generators.pdf
// http://sourceforge.net/projects/slicing-by-8/
uint32_t c;
const uint32_t* current;
const uint8_t* current_char = (const uint8_t*)data;
const size_t unroll = 4;
const size_t bytes_at_once = 8 * unroll;
uintptr_t unaligned_length = (4 - (((uintptr_t)current_char) & 3)) & 3;
uint32_t c;
const uint32_t *current;
const uint8_t *current_char = data;
const size_t unroll = 4;
const size_t bytes_at_once = 8 * unroll;
uintptr_t unaligned_length = (4 - (((uintptr_t)current_char) & 3)) & 3;
c = *previous_crc;
@@ -122,7 +122,7 @@ AARU_EXPORT void AARU_CALL crc32_slicing(uint32_t* previous_crc, const uint8_t*
unaligned_length--;
}
current = (const uint32_t*)current_char;
current = (const uint32_t *)current_char;
while(len >= bytes_at_once)
{
@@ -140,7 +140,7 @@ AARU_EXPORT void AARU_CALL crc32_slicing(uint32_t* previous_crc, const uint8_t*
len -= bytes_at_once;
}
current_char = (const uint8_t*)current;
current_char = (const uint8_t *)current;
while(len-- != 0) c = (c >> 8) ^ crc32_table[0][(c & 0xFF) ^ *current_char++];
@@ -158,7 +158,7 @@ AARU_EXPORT void AARU_CALL crc32_slicing(uint32_t* previous_crc, const uint8_t*
*
* @returns 0 on success, -1 on error.
*/
AARU_EXPORT int AARU_CALL crc32_final(crc32_ctx* ctx, uint32_t* crc)
AARU_EXPORT int AARU_CALL crc32_final(crc32_ctx *ctx, uint32_t *crc)
{
if(!ctx) return -1;
@@ -175,7 +175,7 @@ AARU_EXPORT int AARU_CALL crc32_final(crc32_ctx* ctx, uint32_t* crc)
*
* @param ctx The CRC-32 checksum context structure, to be freed.
*/
AARU_EXPORT void AARU_CALL crc32_free(crc32_ctx* ctx)
AARU_EXPORT void AARU_CALL crc32_free(crc32_ctx *ctx)
{
if(ctx) free(ctx);
}